删除动态创建的QHBoxLayout和QCheckBox

问题描述

我想知道在我创建的包含复选框的表中删除一组指针向量的正确方法

在定义类中，我将变量声明如下：

   class tableFramer : public QWidget
   {
    Q_OBJECT
    public : 
       explicit tableFramer(QWidget *parent = nullptr);
       ~tableFramer();

   private: 

    QVector<QHBoxLayout*> hbLayoutPtrVector;
    QVector<QWidget*> wdgPtrVector;
    QVector<QCheckBox*> cbAcceptPtrVector;
    QVector<QCheckBox*> cbRemovePtrVector;
}

在实现中，我按如下方式创建它们：

void tableFramer::makeForm()
{
:

    ui->tableWidget->clear();

    int j  = 0;
    ui->tableWidget->setRowCount(this->rows);
    ui->tableWidget->setColumnCount(this->cols);
    ui->tableWidget->verticalHeader()->setVisible(false);
    ui->tableWidget->horizontalHeader()->setVisible(false);


    for(int i = 0; i < this->rows; i++)
    {
        QHBoxLayout* hbLayout(new QHBoxLayout());
        QWidget* wdg(new QWidget());
        QCheckBox* applyCb(new QCheckBox(this));
        QCheckBox* removeCb(new QCheckBox(this));

        hbLayoutPtrVector.push_back(hbLayout);
        wdgPtrVector.push_back(wdg);
        cbAcceptPtrVector.push_back(applyCb);
        cbRemovePtrVector.push_back(removeCb);
    }


    for(auto itr = hbLayoutPtrVector.begin() ; itr <= hbLayoutPtrVector.end() && j < hbLayoutPtrVector.length(); itr++,j++ )
    {
        cbAcceptPtrVector.at(j)->setText("Opt 1");cbAcceptPtrVector.at(j)->setProperty("row",j);cbAcceptPtrVector.at(j)->setProperty("column",1);
        cbRemovePtrVector.at(j)->setText("Opt 2");cbRemovePtrVector.at(j)->setProperty("row",j);cbRemovePtrVector.at(j)->setProperty("column",1);
        (*itr)->addWidget(cbAcceptPtrVector.at(j));
        (*itr)->addWidget(cbRemovePtrVector.at(j));
        (*itr)->setAlignment(Qt::AlignCenter);
        wdgPtrVector.at(j)->setLayout(*itr);
        ui->tableWidget->setCellWidget(j,1,wdgPtrVector.at(j));
        ui->tableWidget->verticalHeader()->setSectionResizeMode(QHeaderView::Fixed);
        ui->tableWidget->verticalHeader()->setDefaultSectionSize(40);
        ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Fixed);
        ui->tableWidget->horizontalHeader()->setDefaultSectionSize(200);
        ui->tableWidget->setItem(j,new QTableWidgetItem(this->subfolders.at(j)));

        connect(cbAcceptPtrVector.at(j),SIGNAL(toggled(bool)),this,SLOT(checkBoxAcceptToggeled(bool)));
        connect(cbRemovePtrVector.at(j),SLOT(checkBoxRejectToggeled(bool)));
    }

:
}

要删除动态创建的项目，请在析构函数中执行以下操作，但我认为这样做不正确：

tableFramer::~tableFramer
{
:
if ( rows != 0)
    {
        for(int i = 0; i < rows ; ++i)
        {
            
            if(hbLayoutPtrVector[i]) 
                delete hbLayoutPtrVector[i];
            if(wdgPtrVector[i]) 
                delete wdgPtrVector[i];
            if(cbAcceptPtrVector[i]) 
                delete cbAcceptPtrVector[i];
            if(cbRemovePtrVector[i]) 
                delete cbRemovePtrVector[i];
            
            for(int j=0; j < 3; ++j)  // there are 3 columns in total
            {
                delete ui->tableWidget->item(i,j);
            }
        }
        hbLayoutPtrVector.clear();
        wdgPtrVector.clear();
        cbAcceptPtrVector.clear();
        cbRemovePtrVector.clear();
    }
    rows = 0;
:
}

解决方法

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